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Finding the Fourth Proportional to 219,588.40, 303,033.06 and 118,986.40

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Solution

The fourth proportional to 219,588.40, 303,033.06 and 118,986.40 is: 164,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,588.40 : 303,033.06 = 118,986.40 : x
  2. Step 2: Convert to fraction form
    219,588.40/303,033.06 = 118,986.40/x
  3. Step 3: Cross multiply
    219,588.40x = 303,033.06 × 118,986.40
  4. Step 4: Simplify right side
    219,588.40x = 36,056,812,890.38
  5. Step 5: Solve for x
    x = 36,056,812,890.38/219,588.40
  6. Step 6: Final answer
    x = 164,201.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.